{"id":204817,"date":"2025-05-29T12:08:09","date_gmt":"2025-05-29T04:08:09","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204817\/"},"modified":"2025-05-29T12:08:09","modified_gmt":"2025-05-29T04:08:09","slug":"%e5%ad%97%e5%85%b8%e4%b8%ad%e5%87%ba%e7%8e%b0-none-%e5%80%bc%e7%9a%84%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90%ef%bc%9a%e4%b8%ba%e4%bb%80%e4%b9%88-none-%e5%8f%af%e4%bb%a5%e4%bd%9c%e4%b8%ba%e5%ad%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204817\/","title":{"rendered":"\u5b57\u5178\u4e2d\u51fa\u73b0 None \u503c\u7684\u539f\u56e0\u5206\u6790\uff1a\u4e3a\u4ec0\u4e48 None \u53ef\u4ee5\u4f5c\u4e3a\u5b57\u5178\u952e\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5b57\u5178\u4e2d\u51fa\u73b0 None \u503c\u7684\u539f\u56e0\u5206\u6790\uff1a\u4e3a\u4ec0\u4e48 None 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\u53ef\u4ee5\u4f5c\u4e3a\u5b57\u5178\u952e\uff1f\u300b\uff0c\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\uff0c\u5728\u8fd9\u53ef\u4ee5\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5f00\u53d1\u80fd\u529b\u7684\u63d0\u5347\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241117\/173180813167394b832874b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5b57\u5178\u4e2d\u51fa\u73b0 None \u503c\u7684\u539f\u56e0\u5206\u6790<\/strong><\/p>\n<p>\u5728\u5904\u7406\u5b57\u5178\u65f6\uff0c\u610f\u5916\u5730\u53d1\u73b0\u5b57\u5178\u4e2d\u51fa\u73b0\u4e86\u7a7a\u503c\u3002\u901a\u8fc7\u904d\u5386\u5b57\u5178\u68c0\u67e5\uff0c\u53d1\u73b0\u7a7a\u503c\u5bf9\u5e94\u7684\u952e\u7adf\u7136\u662f None\u3002\u8fd9\u4ee4\u4eba\u56f0\u60d1\uff0c\u56e0\u4e3a None \u7406\u8bba\u4e0a\u4e0d\u80fd\u4f5c\u4e3a\u5b57\u5178\u7684\u952e\u3002<\/p>\n<p><strong>None \u53ef\u4ee5\u4f5c\u4e3a\u5b57\u5178\u952e<\/strong><\/p>\n<p>\u7136\u800c\uff0c\u4ed4\u7ec6\u67e5\u770b\u4f60\u7684\u5b57\u5178 herb2class \u4f1a\u53d1\u73b0\uff0c\u5b83\u786e\u5b9e\u5305\u542b\u4e86\u4e00\u4e2a\u952e\u4e3a None\u3001\u503c\u4e3a\u7a7a\u5b57\u7b26\u4e32\u7684\u5143\u7d20\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cNone \u662f\u53ef\u4ee5\u4f5c\u4e3a\u5b57\u5178\u952e\u7684\u3002<\/p>\n<p>\u8fd9\u662f\u56e0\u4e3a\u5b57\u5178\u7684\u952e\u5fc5\u987b\u662f\u53ef\u54c8\u5e0c\u7684\u5bf9\u8c61\uff0c\u4e5f\u5c31\u662f\u5b9e\u73b0 __hash__ \u548c __eq__ \u65b9\u6cd5\u7684\u5bf9\u8c61\u3002None \u6ee1\u8db3\u8fd9\u4e9b\u6761\u4ef6\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f5c\u4e3a\u952e\u3002<\/p>\n<p><strong>\u5982\u4f55\u89e3\u51b3<\/strong><\/p>\n<p>\u867d\u7136 None \u53ef\u4ee5\u4f5c\u4e3a\u952e\uff0c\u4f46\u5b83\u53ef\u80fd\u4f1a\u5bfc\u81f4\u610f\u5916\u95ee\u9898\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li>\u7565\u8fc7\u952e-\u503c\u5bf9\u952e\u4e3a None \u7684\u5143\u7d20\u3002<\/li>\n<li>\u5c06\u5b57\u5178\u4e2d\u6240\u6709 None \u952e\u66ff\u6362\u4e3a\u5176\u4ed6\u503c\uff0c\u4f8b\u5982\u7a7a\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n<p>\u672c\u7bc7\u5173\u4e8e\u300a\u5b57\u5178\u4e2d\u51fa\u73b0 None \u503c\u7684\u539f\u56e0\u5206\u6790\uff1a\u4e3a\u4ec0\u4e48 None 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